Shoulder pole hanging bar structure and construction method thereof

Abstract

The invention relates to a shoulder pole hanging bar structure and a construction method thereof, and relates to the field of civil engineering. The invention provides a shoulder pole hanging bar structure which is used for hanging an expansion joint structure in a reserved groove and comprises a fixing rod, a fixing piece and a hanging bar. One end of the hanging bar is a threaded end, and the other end is a bent end; the threaded end of the hanging bar penetrates through the fixing rod and is fixed to the fixing rod through a fixing piece. The expansion joint structure is hoisted by arranging the shoulder pole hoisting bar structure, the shoulder pole hoisting bar structure is used for positioning the expansion joint structure in a detachable mode, and the expansion joint structure has the advantages of being convenient and fast to mount and dismount, high in turnover efficiency and capable of being repeatedly used; meanwhile, the situation that the flatness of the profile steel does not reach the standard due to the fact that the profile steel of the expansion joint deforms under the high-temperature effect through traditional welding and fixing can be avoided; meanwhile, rugged craters can be prevented from being left on the surface of the expansion joint, so that the anti-rust paint surface of the expansion joint profile steel is prevented from being damaged; therefore, the installation quality of finished products is improved.

Description

Technical Field

[0001] The invention relates to the field of civil engineering, and in particular to a shoulder pole suspension bar structure and a construction method thereof. Background Art

[0002] Bridge expansion joints are expansion devices installed between the two beam ends or between the beam ends and the abutments to meet the requirements of bridge deck deformation. Bridge expansion joints must also meet the requirements of smooth and comfortable driving, dust and water resistance, and durability. Modular expansion joints are suitable for installation on bridge structures with large displacement (expansion ≧160㎜). The installation quality of modular expansion joints on highway bridges directly affects the quality of expansion joints. Expansion joint defects will directly lead to rigid extrusion of concrete in this area, squeezing the beams and abutment back walls, causing cracking of bridge deck concrete, water leakage on the bridge deck, and vehicle jumping on the bridge deck. When the defects are serious, they will endanger the safety of bridges and driving. For this reason, the most suitable installation tools and processes must be selected to complete the installation of expansion joints faster and better.

[0003] In the prior art, the overall installation method of welding multiple steel sections or steel pipes is as follows: multiple steel pipes or steel sections are placed on the top surface of the expansion joint steel section and are temporarily welded into a whole at an angle of 90 degrees (or consistent with the slope of the bridge) in the same plane, and then the expansion joint is hoisted into the reserved expansion joint slot. At this time, the expansion joint is positioned and bears the dead weight of the expansion joint by relying on the temporarily welded steel pipes or steel sections. After the expansion joint anchor reinforcement is firmly welded to the preset embedded reinforcement in the slot, the steel pipes or steel sections are removed.

[0004] The inventors have found that this method can only roughly level and center the expansion joint, and micro-adjustment is difficult and has low precision. The high temperature generated by welding when the traditional channel steel and the expansion joint are connected and fixed will cause the steel section to deform. After the expansion joint is fixed and installed, a cutting machine is used to cut and separate the hanging bar from the expansion joint steel section, which will damage the rust-proof surface of the steel section, which has a bad impact on the expansion joint steel section itself and the quality of the installed finished product. Summary of the invention

[0005] The objects of the present invention include, for example, providing a shoulder pole suspension bar structure and a construction method thereof, which can be installed and disassembled conveniently and quickly, has a high turnover efficiency, can be reused, and does not affect the expansion joint structure.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] On the one hand, the present invention proposes a shoulder pole hanging bar structure for hanging an expansion joint structure in a reserved groove, comprising a fixing rod, a fixing piece and a hanging bar; one end of the hanging bar is a threaded end, and the other end is a bent end; the threaded end of the hanging bar passes through the fixing rod and is fixed to the fixing rod through the fixing piece.

[0008] Furthermore, the fixing rod is provided with a bolt hole, and the threaded end of the suspension bar passes through the bolt hole and is fixed to the fixing rod through the fixing piece.

[0009] Further, the expansion joint structure comprises a first steel section and a second steel section, a plurality of first tension bars are welded to the first steel section, and a plurality of second tension bars are welded to the second steel section;

[0010] The first tensioning reinforcement and the second tensioning reinforcement are symmetrically arranged.

[0011] Furthermore, at least a first hanging bar and a second hanging bar are provided on the fixing rod, the bent end of the first hanging bar is hooked to the first tensioning bar, and the bent end of the second hanging bar is hooked to the second tensioning bar.

[0012] Furthermore, the fixing rod is provided with two bent edges, and the threaded end of the suspension bar passes through the two bent edges and is fixed to one side of one of the bent edges through the fixing piece.

[0013] Another aspect of the present invention provides a construction method of a shoulder pole suspension bar structure, comprising an expansion joint structure and the shoulder pole suspension bar structure; the construction method comprises the following steps: manufacturing the shoulder pole suspension bar structure according to the length and type of the reserved groove;

[0014] Installing the shoulder pole suspension bar structure and the expansion joint structure;

[0015] The installed carrying pole suspension bar structure and the expansion joint structure are hoisted in the reserved groove. Further, the step of installing the carrying pole suspension bar structure and the expansion joint structure includes:

[0016] Placing the fixing rod on the top surfaces of the first steel section and the second steel section;

[0017] Hanging the bent end of the first suspension bar to the first tensioning bar, and passing the threaded end of the first suspension bar through the fixing rod;

[0018] The bent end of the second suspension bar is hooked to the second tensioning rod, and the threaded end of the second suspension bar is passed through the fixing rod.

[0019] Furthermore, the step of installing the shoulder pole suspension bar structure and the expansion joint structure comprises:

[0020] The first suspension bar and the second suspension bar are fixed by a fixing member.

[0021] Furthermore, the step of hoisting the installed shoulder pole suspension bar structure and the expansion joint structure into the reserved groove of the expansion joint includes:

[0022] The installed shoulder pole suspension bar structure and the expansion joint structure are hoisted in the reserved groove, and the two ends of the fixing rod are respectively placed on the installation surfaces on both sides of the expansion joint.

[0023] Furthermore, a plurality of shoulder pole suspension bar structures are arranged at intervals on the expansion joint structure.

[0024] The beneficial effects of the embodiments of the present invention include, for example:

[0025] The present invention hoists the expansion joint structure by arranging a shoulder pole hanging bar structure. The shoulder pole hanging bar structure adopts a detachable manner to position the expansion joint structure, and has the characteristics of convenient and quick installation and disassembly, high turnover efficiency, and reusability. At the same time, it can avoid the situation in which traditional welding fixation causes the steel section of the expansion joint to deform under high temperature, thereby resulting in the steel section flatness not meeting the standard; at the same time, it can also avoid leaving uneven weld scars on the surface of the expansion joint, thereby avoiding damaging the anti-rust paint surface of the expansion joint steel section; thereby improving the quality of the finished product installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of a shoulder pole suspension bar structure and an expansion joint structure being hoisted in a reserved groove according to an embodiment of the present invention;

[0028] Figure 2 It is a cross-sectional view of a shoulder pole suspension bar structure and an expansion joint structure hoisted in a reserved groove according to an embodiment of the present invention;

[0029] Figure 3 It is a structural schematic diagram of a shoulder pole suspension bar structure according to an embodiment of the present invention;

[0030] Figure 4 A cross-sectional view of a shoulder pole suspension bar structure according to an embodiment of the present invention;

[0031] Figure 5 The present invention is a flowchart of a construction method of a shoulder pole suspension bar structure according to an embodiment of the present invention.

[0032] Icons: 100-carrying pole suspension bar structure; 110-fixing rod; 111-first bending edge; 112-second bending edge; 120-fixing piece; 130-suspension bar; 131-threaded end; 132-bending end; 133-first suspension bar; 134-second suspension bar; 200-expansion joint structure; 210-first section steel; 220-first tensioning bar; 230-second section steel; 240-second tensioning bar; 300-reserved groove; 400-bridge. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0038] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0039] When traditional expansion joints are fixed and installed, the positioning channel steel and the expansion joint steel are usually fixed by welding. This requires the cooperation of generators, electric welders, angle grinders, angle grinders, professional welders, etc. to complete this work. Therefore, the traditional method of completing this work is more professional and complex.

[0040] At the same time, the high temperature generated by welding when the traditional channel steel and the expansion joint are connected and fixed will cause the steel section to deform. After the expansion joint is fixed and installed, a cutting machine is used to cut and separate the hanger bar 130 from the expansion joint steel section, which will damage the rust-proof surface of the steel section, which has a bad impact on the expansion joint steel section itself and the quality of the installed finished product.

[0041] Therefore, the present embodiment provides a shoulder pole suspension bar structure 100 and a construction method thereof, which can be fixed to the steel section through the shoulder pole suspension bar structure 100 to replace the welding connection by electric welding; it can not only play the role of temporary fixing and positioning, but also avoid damage to the steel section; at the same time, only one operator is needed to complete the installation and dismantling operations during construction, without the need for energy-consuming machines such as electric welders and angle grinders, which greatly reduces the construction difficulty of this process.

[0042] Please refer to Figure 1-Figure 2 In this embodiment, the expansion joint structure 200 is specifically an expansion joint structure 200 for a bridge 400 .

[0043] Among them, the expansion joint structure 200 of the bridge 400 is to meet the deformation requirements of the bridge deck, and is generally set in a reserved groove 300 between two beam ends, or in a reserved groove 300 between a beam end and a bridge abutment.

[0044] Please refer to Figure 2 In this embodiment, the expansion joint structure 200 includes a steel section, and a plurality of symmetrically arranged tensioning bars are welded on both sides of the steel section; the bent end 132 of the suspension bar 130 is used for hoisting the tensioning bars.

[0045] Specifically, the steel section includes a first steel section 210 and a second steel section 230 of a U-shaped structure. The first steel section 210 and the second steel section 230 are symmetrically arranged back to back. A first tensioning bar 220 is arranged on the U-shaped side of the first steel section 210 , and a second tensioning bar 240 is arranged on the U-shaped side of the second steel section 230 .

[0046] The tensioning steel bar has been pre-tensioned and has a certain prestress, so that when the expansion joint structure 200 undergoes expansion and contraction deformation, the tensioning steel bar can absorb and offset the stress and deformation caused by expansion and contraction, thereby ensuring the overall performance and stability of the building.

[0047] Please refer to Figure 2-Figure 4In this embodiment, a carrying pole suspension bar structure 100 is provided, which includes a fixing rod 110, a fixing member 120 and a suspension bar 130; one end of the suspension bar 130 is a threaded end 131, and the other end is a bent end 132; the threaded end 131 of the suspension bar 130 penetrates the fixing rod 110 and is fixed to the fixing rod 110 through the fixing member 120.

[0048] In this embodiment, the shoulder pole suspension bar structure 100 includes a fixing rod 110 .

[0049] The fixing rod 110 is a 100-type channel steel.

[0050] Please refer to Figure 4 , wherein two bent edges are provided on the fixing rod 110, and two threaded holes equidistantly and symmetrically arranged are provided on the first bent edge 111 and the second bent edge 112; one of the threaded holes is used to fix to the first suspension rod, and the other is used to fix to the second suspension rod, and the distance between the two threaded holes needs to be set according to the distance between the first tensioning rod 220 and the second tensioning rod 240.

[0051] Specifically, when the fixing rod 110 and the suspension rod are installed, the threaded end 131 of the suspension rod 130 is passed through the threaded hole of the second bending edge 112 and the threaded hole of the first bending edge 111 in sequence, and the fixing member 120 is fixed to the upper end surface of the first bending edge 111.

[0052] Please refer to Figure 4 In this embodiment, the shoulder pole suspension bar structure 100 includes a suspension bar 130 . One end of the suspension bar 130 is a threaded end 131 , and the other end is a bent end 132 ; the threaded end 131 of the suspension bar 130 penetrates the fixing rod 110 and is fixed to the fixing rod 110 through the fixing member 120 .

[0053] The fixing member 120 may be a nut, a cap, etc. The fixing member 120 is threadedly connected with the threaded end 131 of the suspension bar 130. The fixing member 120 and the threaded end 131 of the suspension bar 130 are provided with matching threads.

[0054] Please refer to Figure 2-Figure 3 In this embodiment, the suspension bar 130 includes a first suspension bar 133 and a second suspension bar 134 , the bent end 132 of the first suspension bar 133 is connected to the first tensioning bar 220 , and the bent end 132 of the second suspension bar 134 is connected to the second tensioning bar 240 .

[0055] Specifically, during installation, after the bent end 132 of the first suspension bar 133 is hooked to the first tensioning bar 220, the threaded end 131 of the first suspension bar 133 is passed through one of the threaded holes on the fixing rod 110 and fixed by the fixing member 120. Then, the bent end 132 of the second suspension bar 134 is hooked to the second tensioning bar 240, the threaded end 131 of the second suspension bar 134 is passed through another threaded hole on the fixing rod 110 and fixed by the fixing member 120.

[0056] It can be understood that the first suspension bar 133 is connected to the first tensioning bar 220, and the second suspension bar 134 is connected to the second tensioning bar 240; the first suspension bar 133 and the second suspension bar 134 are both fixed to the fixing rod 110 through the fixing member 120; so that the first steel section 210 and the second steel section 230 are fixed.

[0057] It can be understood that the shoulder pole suspension bar structure 100 configured in this way has the characteristics of convenient and quick installation and disassembly, high turnover efficiency and reusability when used in the expansion joint structure 200 of the fixed bridge 400.

[0058] At the same time, the shoulder pole hanging bar structure 100 is connected by threads; it can effectively avoid the use of professional electric welding workers and small tools such as generators, electric welders, angle grinders, etc., reduce the difficulty of installation operation, and save labor, material, and machinery investment; it can also avoid the deformation of the steel of the expansion joint under high temperature caused by traditional welding fixation, avoid leaving uneven welding scars on the surface of the expansion joint, and avoid damaging the anti-rust paint surface of the steel of the expansion joint. After the expansion joint structure 200 is fixed by the shoulder pole hanging bar structure 100, various damages to the expansion joint caused by electric welding can be effectively avoided, thereby improving the quality of the finished product installation.

[0059] Please refer to Figure 5 This embodiment also provides a construction method of a shoulder pole suspension bar structure 100, the construction method comprising the following steps:

[0060] S1: According to the length and model of the expansion joint structure 200, a shoulder pole suspension bar structure 100 is manufactured.

[0061] S2: Install the shoulder pole suspension bar structure 100 and the steel section.

[0062] S3: Hang the installed shoulder pole suspension bar structure 100 and the steel section into the reserved groove 300 of the expansion joint.

[0063] Among them, in step S1: the length and model of the expansion joint structure 200 need to be set according to the reserved groove 300 between the two bridges 400; and the expansion amount of the expansion joint structure 200 is related to the expansion joint length of the bridge 400.

[0064] Wherein, step S2 also includes:

[0065] S21 : placing the fixing rod 110 on the top end surfaces of the first steel section 210 and the second steel section 230 .

[0066] After the first steel section 210 and the second steel section 230 are symmetrically placed, a plurality of fixing rods 110 are sequentially placed on the top end surfaces of the first steel section 210 and the second steel section 230 .

[0067] S22: Hook the bent end 132 of the first suspension bar 133 to the first tensioning rod 220 , and pass the threaded end 131 of the first suspension bar 133 through the fixing rod 110 .

[0068] S23: Hook the bent end 132 of the second suspension bar 134 to the second tensioning rod 240 , and pass the threaded end 131 of the second suspension bar 134 through the fixing rod 110 .

[0069] S24: Fix the first suspension bar 133 and the second suspension bar 134 through the fixing member 120 .

[0070] Among them, multiple fixing rods 110 are fixed to the telescopic slot structure in sequence, so as to achieve the function of temporarily fixing and positioning the first steel 210 and the second steel at the same time.

[0071] In step S3, it also includes: S31: hanging the installed shoulder pole suspension bar structure 100 and the expansion joint structure 200 in the reserved groove 300, and placing the two ends of the fixing rod 110 on the installation surfaces on both sides of the expansion joint respectively.

[0072] Among them, the specification requires that the relative elevation between the top surface of the expansion joint structure 200 and the concrete and the road surface after fixing is <2mm, and the expansion joint structure 200 of the bridge 400 is fixed with a shoulder pole suspension bar structure 100, which has the characteristics of better longitudinal straightness and flatness, and can avoid the situation where the steel section is deformed under high temperature and the flatness does not meet the standard.

[0073] After the shoulder pole suspension bar structure 100 is used, it can be manually dismantled and can be reused.

[0074] In summary, the shoulder pole suspension bar structure 100 and the construction method thereof provided in this embodiment have at least the following advantages:

[0075] The expansion joint structure 200 is hoisted by setting a shoulder pole hanging bar structure 100. The shoulder pole hanging bar structure 100 adopts a detachable method to position the expansion joint structure 200, and has the characteristics of convenient and quick installation and disassembly, high turnover efficiency, and reusability; at the same time, it can avoid the situation where the traditional welding fixation causes the steel of the expansion joint to deform under the action of high temperature, thereby resulting in the steel flatness not meeting the standard; at the same time, it can also avoid leaving uneven weld scars on the surface of the expansion joint, thereby avoiding damaging the anti-rust paint surface of the expansion joint steel; thereby improving the quality of the finished product installation.

[0076] Moreover, during construction, only one operator is needed to complete the installation and removal work. At the same time, it can effectively avoid the use of professional welding workers and small tools such as generators, welding machines, angle grinders, etc., which reduces the difficulty of installation operation and saves labor, materials, and machinery. This makes the quality of the finished product better, the deformation of the steel section is smaller, and the construction speed is faster. It greatly improves the construction progress, improves the quality effect, increases driving comfort, saves construction costs, and achieves good economic and social benefits.

[0077] At the same time, the installation and dismantling processes avoid the use of dangerous tools such as electric welders and angle grinders that require power, reducing the dangerous factors in the construction process of this process, improving the safety and environmental protection of the construction process of this process, and the effect in energy conservation and emission reduction is also quite significant.

[0078] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A shoulder pole hanging bar structure, used to hang the expansion joint structure in the reserved groove, It is characterized in that It includes a fixing rod, fixing parts and a hanging bar; One end of the suspension bar is a threaded end, and the other end is a bent end; The threaded end of the suspension bar passes through the fixing rod and is fixed to the fixing rod through the fixing member.

2. The shoulder pole suspension bar structure according to claim 1, It is characterized in that The fixing rod is provided with a bolt hole, and the threaded end of the suspension bar passes through the bolt hole and is fixed to the fixing rod through the fixing piece.

3. The shoulder pole suspension bar structure according to claim 1, It is characterized in that The expansion joint structure comprises a first steel section and a second steel section, wherein a plurality of first tension bars are welded to the first steel section, and a plurality of second tension bars are welded to the second steel section; The first tensioning reinforcement and the second tensioning reinforcement are symmetrically arranged.

4. The shoulder pole suspension bar structure according to claim 3, It is characterized in that At least a first hanging bar and a second hanging bar are provided on the fixing rod, the bent end of the first hanging bar is connected to the first tensioning bar, and the bent end of the second hanging bar is connected to the second tensioning bar.

5. The shoulder pole suspension bar structure according to claim 1, It is characterized in that The fixing rod is provided with two bent edges, and the threaded end of the suspension bar passes through the two bent edges and is fixed to one side of one of the bent edges through the fixing piece.

6. A construction method for a shoulder pole suspension bar structure, It is characterized in that It comprises an expansion joint structure and the shoulder pole suspension bar structure according to any one of claims 1 to 5; The construction method comprises the following steps: manufacturing the shoulder pole suspension bar structure according to the length and type of the reserved groove; Installing the shoulder pole suspension bar structure and the expansion joint structure; The installed shoulder pole suspension bar structure and the expansion joint structure are hoisted into the reserved groove.

7. The construction method of the shoulder pole suspension bar structure according to claim 6, It is characterized in that The step of installing the shoulder pole suspension bar structure and the expansion joint structure comprises: Placing the fixing rod on the top surfaces of the first steel section and the second steel section; Hanging the bent end of the first suspension bar to the first tensioning bar, and passing the threaded end of the first suspension bar through the fixing rod; The bent end of the second suspension bar is hooked to the second tensioning rod, and the threaded end of the second suspension bar is passed through the fixing rod.

8. The construction method of the shoulder pole suspension bar structure according to claim 7, It is characterized in that The step of installing the shoulder pole suspension bar structure and the expansion joint structure comprises: The first suspension bar and the second suspension bar are fixed by a fixing member.

9. The construction method of the shoulder pole suspension bar structure according to claim 7, It is characterized in that The step of hoisting the installed shoulder pole suspension bar structure and the expansion joint structure into the reserved groove of the expansion joint comprises: The installed shoulder pole suspension bar structure and the expansion joint structure are hoisted in the reserved groove, and the two ends of the fixing rod are respectively placed on the installation surfaces on both sides of the expansion joint.

10. The construction method of the shoulder pole suspension bar structure according to claim 6, It is characterized in that A plurality of shoulder pole suspension bar structures are arranged at intervals on the expansion joint structure.

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